//
//  Common.h
//  Together
//
//  Created by Dawn on 12-12-15.
//  Copyright (c) 2012年 Dawn. All rights reserved.
//

#import <Foundation/Foundation.h>


@interface Common : NSObject{
    
}
+ (NSString *) dateSwitchFromDate:(NSDate *)date;
+ (NSDate *) nsDateFromDateString:(NSString *)dateString;
+ (NSString *) keyWithURLString:(NSString *)url;
+ (long long) cacheSize;
+ (NSString *) dataFilePath:(NSString *)fileName;
+ (NSString *) cacheFilePath:(NSString *)fileName;
+ (void) clearCache;
@end
